primo commit

libraries/fof30/Cli/Traits/CGIModeAware.php

@@ -0,0 +1,69 @@
+<?php
+/**
+ * @package   FOF
+ * @copyright Copyright (c)2010-2021 Nicholas K. Dionysopoulos / Akeeba Ltd
+ * @license   GNU General Public License version 2, or later
+ */
+
+namespace FOF30\Cli\Traits;
+
+defined('_JEXEC') || die;
+
+/**
+ * CGI Mode detection and workaround
+ *
+ * Some hosts only give access to the PHP CGI binary, even for running CLI scripts. While problematic, it mostly works.
+ * This trait detects PHP-CGI and manipulates $_GET in such a way that we populate the $argv and $argc global variables
+ * in the same way that PHP-CLI would set them. This allows the CLI input object to work. Moreover, we unset the PHP
+ * execution time limit, if possible, to prevent accidental timeouts.
+ *
+ * @package FOF30\Cli\Traits
+ */
+trait CGIModeAware
+{
+	/**
+	 * Detect if we are running under CGI mode. In this case it populates the global $argv and $argc parameters off the
+	 * CGI input ($_GET superglobal).
+	 */
+	private function detectAndWorkAroundCGIMode()
+	{
+		// This code only executes when running under CGI. So let's detect it first.
+		$cgiMode = (!defined('STDOUT') || !defined('STDIN') || !isset($_SERVER['argv']));
+
+		if (!$cgiMode)
+		{
+			return;
+		}
+
+		// CGI mode has a time limit. Unset it to prevent timeouts.
+		if (function_exists('set_time_limit'))
+		{
+			set_time_limit(0);
+		}
+
+		// Convert $_GET into the appropriate $argv representation. This allows Input\Cli to work under PHP-CGI.
+		$query = "";
+
+		if (!empty($_GET))
+		{
+			foreach ($_GET as $k => $v)
+			{
+				$query .= " $k";
+				if ($v != "")
+				{
+					$query .= "=$v";
+				}
+			}
+		}
+
+		$query = ltrim($query);
+
+		global $argv, $argc;
+
+		$argv = explode(' ', $query);
+		$argc = count($argv);
+
+		$_SERVER['argv'] = $argv;
+	}
+
+}